14 mm Gauge Ball Pair, Hardened Chromium Steel, 0.003 mm Accuracy, Diameter Tolerance 0.00008 mm - Metav IndustryLine

A reliable pair of precision gauge balls in hardened chrome steel offers repeatable reference points for inspection and calibration; combine 0.003 mm accuracy with >HRC 62 hardness and fine surface quality for consistent measurement results. Order the pair directly via Metav Werkzeuge or consult our technical advisors for application guidance.

Gauge ball pair M318.424 — 14 mm hardened chrome steel, 0.003 mm accuracy (Metav IndustryLine)

A 14 mm gauge ball pair designed as a reference standard for dimensional inspection, fixture setting and gauge construction in metrology environments.

• Hardened chrome steel >HRC 62
• Diameter 14 mm for compact referencing
• High accuracy 0.003 mm for reliable calibration
• Delivered as a precision set of two

Precise, hardened material for stable reference points

The pair is made from hardened chrome steel, offering a robust contact surface that resists deformation under repeat loading. This material choice, combined with a hardness rating of >HRC 62, ensures the spheres maintain their form during repeated use and provide a stable datum for comparative measurements. The material stability reduces wear-related drift, which supports longer intervals between replacement or rework and preserves accuracy in routine inspection workflows.

Measured accuracy and surface quality explained

Ground and finished to a nominal diameter of 14 mm, the spheres achieve an advertised accuracy of 0.003 mm, with a diameter tolerance of 0.00008 mm and surface roughness of 0.00001 mm. These specifications translate to measurement reproducibility at the micrometre level, suitable for calibration tasks and precision gauging. For users less familiar with these figures: the accuracy indicates the maximum deviation from the ideal sphere form, the tolerance specifies allowable diameter variation, and the surface roughness reflects how smooth the contact area is—each factor contributing to consistent probe and contact readings.

Practical benefits in inspection and gauge assembly

Supplied as a set of two, the spheres simplify the construction of comparative gauges, multi-point datum assemblies and fixture references where matched pairs are required. The small footprint and moderate mass make the set convenient for use in bench-top inspection rigs and portable gauge assemblies. Because the items are sold as a matched pair, mating surfaces and fixture designs benefit from paired consistency, reducing the need for individual matching and accelerating setup time in production or calibration labs.

For precision calibration tasks, secure the Metav IndustryLine M318.424 gauge ball pair via Metav Werkzeuge — contact our Emmerich team for specification confirmation or assistance with integration into existing measuring systems.

Technical data

• Article number: M318.424
• GTIN: 4054469184128
• Brand: Metav IndustryLine

Dimensions & key figures

• Diameter: 14 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness: 0.00001 mm
• Hardness: >HRC 62
• Weight (set): 0.05 kg
• Pieces per set: 2

Materials & features

• Material: chrome steel, hardened
• Delivered as a matched set of two spheres
• Category: gauges / measuring devices

FAQ

What is the intended use for these gauge balls?
The gauge ball pair M318.424 from Metav IndustryLine is intended as a reference standard for dimensional inspection, fixture setting and gauge construction where matched precision spheres are required.

Are the spheres supplied as a matched set?
Yes, the product is delivered as a matched set of two precision spheres (SKU M318.424), which facilitates paired datum and fixture applications.

How does the specified accuracy translate in practical terms?
An accuracy of 0.003 mm means each sphere conforms closely to the ideal form within three micrometres, offering reproducible contact geometry for comparators, probes and gauge assemblies.

What advantages does the chrome steel material provide?
The hardened chrome steel composition with >HRC 62 ensures high wear resistance and dimensional stability, so the spheres maintain form under repeated contact and deliver long-term reliability.

Can these spheres be used for calibration of optical or tactile probes?
Yes, the fine surface quality and tight diameter tolerance make the pair suitable as reference artefacts for both tactile and optical probe checks when appropriate fixture and environmental control are applied.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com